diff --git a/apis/fabric-contract-api/package.json b/apis/fabric-contract-api/package.json
index ca3add05..d4270433 100644
--- a/apis/fabric-contract-api/package.json
+++ b/apis/fabric-contract-api/package.json
@@ -51,7 +51,7 @@
     "fast-safe-stringify": "~2.0.7",
     "get-params": "^0.1.2",
     "reflect-metadata": "^0.1.12",
-    "winston": "^3.2.1"
+    "winston": "3.2.1"
   },
   "devDependencies": {
     "ajv": "^6.5.5",
diff --git a/libraries/fabric-shim/package.json b/libraries/fabric-shim/package.json
index c7920aee..c25f396a 100644
--- a/libraries/fabric-shim/package.json
+++ b/libraries/fabric-shim/package.json
@@ -63,7 +63,7 @@
     "fabric-shim-api": "2.1.3",
     "fs-extra": "8.1.0",
     "reflect-metadata": "^0.1.12",
-    "winston": "^3.2.1",
+    "winston": "3.2.1",
     "yargs": "^13.3.0 ",
     "yargs-parser": "^13.1.1"
   },